"To the children, the town was their whold world. To the adults, knowing better, Derry, Maine, was just their home town: familiar, well-ordered, a good place to live. It was the childtren who saw -- and felt -- what made Derry so horribly different. In the stormdrains, in the sewers, It lurked, taking on the shape of every nightmare, each person's deepest dread. Sometimes It reached up, seizing, tearing, killing..." -- from back cover.
Good and evil -- Fiction.
Monsters -- Fiction.